Question

the fall of tenochtitlán in 1521 was significant because
it ended the aztec empire.
it ended the inca empire.
it established a spanish colony in the americas.
it gave spain control of the fountain of youth.

Explanation:

• The fall of Tenochtitlán in 1521 was a key event in the Spanish conquest of the Aztec Empire. The Aztec capital was Tenochtitlán, so its fall led to the end of the Aztec empire.
• The Inca empire was in South America and ended later with the capture of Atahualpa, so the option about the Inca empire is incorrect.
• Spanish colonies were already being established, and the fall of Tenochtitlán specifically ended the Aztec empire rather than just establishing a colony (the colony aspect was part of broader conquest). The "fountain of youth" is a myth and not related to this event.

Answer:

A. it ended the Aztec empire.